Tweak layout

app/views/layouts/application.html.slim

@@ -8,17 +8,13 @@ head
 
 body
   .row
-    - flash.each do |name, msg|
-      = content_tag :div, msg, class: name
-  .row
-    .large-8.columns
-      h1#title
-       = link_to 'Stadtratmonitor Leipzig', root_path
-    .large-4.columns
-      ul.inline-list.right
-        li = render 'login_button'
-  .row
-    = yield
+    .small-12.columns
+      .clearfix
+        .right = render 'login_button'
+      h1#title = link_to 'Stadtratmonitor Leipzig', root_path
+      - flash.each do |name, msg|
+        = content_tag :div, msg, class: name
+      = yield
 
   script src="https://login.persona.org/include.js"
   = javascript_include_tag 'application', 'data-turbolinks-track' => true